<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator=">">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card class="box-card">
      <!-- 搜索与添加 -->
      <el-row :gutter="15">
        <el-col :span="9">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUsersList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUsersList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisibel = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>

      <!-- 表格区域 -->
      <el-table :data="tableData" border stripe style="width: 100%">
        <el-table-column type="index"></el-table-column>
        <el-table-column label="ID" prop="id"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="创建时间" prop="create_time"></el-table-column>
        <el-table-column label="状态">
          <!-- eslint-disable-next-line -->
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChanged(scope.row)"
            ></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="200px">
          <!-- eslint-disable-next-line -->
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              size="mini"
              icon="el-icon-edit"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              size="mini"
              icon="el-icon-delete"
              @click="removeUserById(scope.row.id)"
            ></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                size="mini"
                icon="el-icon-setting"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <!-- 
        @size-chang : 监听 pagesize 改变的事件
        @current-change : 监听 页码值 改变的事件
       -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>

    <!-- 添加用户对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisibel"
      width="50%"
      @close="addDialogClosed"
    >
      <!-- 内容主体区域 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="80px"
      >
        <el-form-item label="用户名称" prop="username">
          <el-input v-model="addForm.username" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input
            v-model="addForm.password"
            type="password"
            autocomplete="off"
          ></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile" autocomplete="off"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisibel = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 编辑用户对话框 -->
    <el-dialog
      title="编辑用户"
      :visible.sync="editDialogVisibel"
      width="50%"
      @close="editDialogClosed"
    >
      <!-- 内容主体区域 -->
      <el-form
        :model="editForm"
        :rules="editFormRules"
        ref="editFormRef"
        label-width="80px"
      >
        <el-form-item label="用户名称" prop="username">
          <el-input
            v-model="editForm.username"
            :disabled="true"
            autocomplete="off"
          ></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile" autocomplete="off"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisibel = false">取 消</el-button>
        <el-button type="primary" @click="editUser">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
  export default {
    data() {
      // 自定义校验规则
      // 校验邮箱
      var checkEmail = (rule, value, cb) => {
        const regEmail = /^[a-zA-Z0-9_-]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/;

        if(regEmail.test(value)) {
          // 合法邮箱
          return cb();
        }
        cb(new Error('请输入合法邮箱'));        
      }
      // 校验手机号
      var checkMobile = (rule, value, cb) => {
        const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/;
        if(regMobile.test(value)) {
          // 合法邮箱
          return cb();
        }
        cb(new Error('请输入合法的手机号')); 
        
      }
      return {
        // 获取用户列表的参数对象
        queryInfo : {
          query:'',
          // 当前的页数
          pagenum:1,
          // 当前页码显示几条的数据
          pagesize:10,
        },
        // 表格数据
        tableData:[],
        total:0,
        // 添加用户
        // 控制 添加用户对话框的显示与隐藏
        addDialogVisibel:false,
        // 添加用户的表单数据对象
        addForm:{
          username: '',
          password: '',
          email: '',
          mobile: ''
        },
        // 添加表单的验证规则对象
        addFormRules:{
          username:[
            {required:true, message:'请输入用户名称', trigger:'blur'},
            {min:3, max: 10, message:'用户名的长度在 3~10 个字符之间', trigger:'blur'}
          ],
          password:[
            {required:true, message:'请输入密码', trigger:'blur'},
            {min:3, max: 15, message:'用户密码的长度在 6~15 个字符之间', trigger:'blur'}
          ],
          email: [
            {required:true, message:'请输入邮箱', trigger:'blur'},
            {validator: checkEmail, trigger: 'blur'}
          ],
          mobile: [
            {required:true, message:'请输入手机号码', trigger:'blur'},
            {validator: checkMobile, trigger:'blur'}
          ]
        },
        // 点击编辑按钮-编辑对话框的显示与隐藏
        editDialogVisibel:false,
        // 查询到的用户信息
        editForm: {},        
        // 编辑表单的验证规则对象
        editFormRules:{
          email: [
            {required:true, message:'请输入邮箱', trigger:'blur'},
            {validator: checkEmail, trigger: 'blur'}
          ],
          mobile: [
            {required:true, message:'请输入手机号码', trigger:'blur'},
            {validator: checkMobile, trigger:'blur'}
          ]
        },
      }
    },
    created () {
      this.getUsersList();
    },
    methods: {
      // 表格数据
      async getUsersList () {
        const { data: res} = await this.$http.get('users',{
          params: this.queryInfo
        });
        if(res.meta.status !== 200) return this.$message.error('res.meta.msg');
        this.tableData = res.data.users;
        this.total = res.data.total;
      },
      // 分页 监听 pagesize 改变的事件      
      handleSizeChange(newSize) {
        // console.log(newSize);
        this.queryInfo.pagesize = newSize;
        this.getUsersList();
      },
      // 监听 页码值 改变的事件
      handleCurrentChange(newPage) {
        // console.log(newPage);
        this.queryInfo.pagenum = newPage;
        this.getUsersList();
      },
      // 监听 switch 开关状态的改变
      async userStateChanged(userInfo){
        // console.log(userInfo)
        //  put  url: users/:uId/state/:type  
        const { data: res } = await this.$http.put(
          `users/${userInfo.id}/state/${userInfo.mg_state}`
        )
        if(res.meta.status != 200) {
          userInfo.mg_state = !userInfo.mg_state;
          return this.$message.error("更新用户状态失败");
        }
        this.$message.success("更新用户状态成功");
      },
      // 监听 关闭添加用户对话框 事件
      addDialogClosed() {
        this.$refs.addFormRef.resetFields()
      },
      // 点击按钮，添加新用户
      addUser() {
        this.$refs.addFormRef.validate(async valid => {
          // console.log(valid);
          if(!valid) return;
          // add 请求后台
          const {data: res} = await this.$http.post('users', this.addForm);
          if(res.meta.status != 201) return this.$message.error('res.meta.msg');
          this.$message.success('添加用户成功！');
          this.addDialogVisibel = false;
          this.getUsersList();
        })
      },
      // 编辑 - 点击编辑按钮
      async showEditDialog(id) {
        const {data: res} = await this.$http.get('users/'+id);
        if(res.meta.status !== 200) {
          return this.$message.error('查询用户信息失败');
        }
        this.editForm = res.data;
        this.editDialogVisibel = true;        
      },
      editDialogClosed() {
        this.$refs.editFormRef.resetFields()
      },
      // 编辑 - 点击确定按钮发送编辑的数据
      editUser() {
        // 验证数据是否合法
        this.$refs.editFormRef.validate(async valid => {
          // console.log(valid);
          if(!valid) return;
          // edit 请求后台
          const {data: res} = await this.$http.put('users/'+ this.editForm.id,{
            email: this.editForm.email,
            mobile: this.editForm.mobile
          });
          if(res.meta.status !== 200) {
            return this.$message.error(res.meta.msg);          
          }
          this.getUsersList();
          this.editDialogVisibel = false;
          this.$message.success(res.meta.msg); 
        })
               
      },
      // 删除 - 根据ID删除数据
      async removeUserById(id) {
        // 弹框询问
        const confirmRes = await this.$confirm(
          '此操作将永久删除该文件, 是否继续?',
          '提示', 
          {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning'
          }
        ).catch (err => err)

        // 点击确认按钮 -> 返回值为字符串 confirm
        // console.log(confirmRes); // confirm

        // 点击取消按钮 -> 返回值为字符串 cancel
        // console.log(confirmRes); // cancel
        
        if(confirmRes != 'confirm') {
          return this.$message.info('已取消删除');
        }
        const {data: res} = await this.$http.delete('users/'+ id);
        if(res.meta.status != 200) {
          return this.$message.error('删除用户失败');
        }
        this.$message.success('已成功删除');
        this.getUsersList();
      }
    }
  }
</script>

<style lang="less" scoped>
</style>
